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Daphnin :: Daphnin (n.) A white, crystalline, bitter substance, regarded as a glucoside, and extracted from Daphne mezereum and D. alpina..

Ligustrin :: Ligustrin (n.) A bitter principle found in the bark of the privet (Ligustrum vulgare), and extracted as a white crystalline substance with a warm, bitter taste; -- called also ligustron..

Bitter Spar :: Bitter spar () A common name of dolomite; -- so called because it contains magnesia, the soluble salts of which are bitter. See Dolomite..

Phillyrin :: Phillyrin (n.) A glucoside extracted from Phillyrea as a bitter white crystalline substance. It is sometimes used as a febrifuge.

Quinine :: Quinine (n.) An alkaloid extracted from the bark of several species of cinchona (esp. Cinchona Calisaya) as a bitter white crystalline substance, C20H24N2O2. Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc..

Podophyllin :: Podophyllin (n.) A brown bitter gum extracted from the rootstalk of the May apple (Podophyllum peltatum). It is a complex mixture of several substances.

Bitterwood :: Bitterwood (n.) A West Indian tree (Picraena excelsa) from the wood of which the bitter drug Jamaica quassia is obtained.

Cornin :: Cornin (n.) A bitter principle obtained from dogwood (Cornus florida), as a white crystalline substance; -- called also cornic acid..

Attack :: Attack (n.) An assault upon one's feelings or reputation with unfriendly or bitter words.

Acerbate :: Acerbate (v. t.) To sour; to imbitter; to irritate.

Nataloin :: Nataloin (n.) A bitter crystalline substance constituting the essential principle of Natal aloes. Cf. Aloon.

Marrubium :: Marrubium (n.) A genus of bitter aromatic plants, sometimes used in medicine; hoarhound..

Gentianine :: Gentianine (n.) A bitter, crystallizable substance obtained from gentian..

Lactucin :: Lactucin (n.) A white, crystalline substance, having a bitter taste and a neutral reaction, and forming one of the essential ingredients of lactucarium..

Turmeric :: Turmeric (n.) The root or rootstock of the Curcuma longa. It is externally grayish, but internally of a deep, lively yellow or saffron color, and has a slight aromatic smell, and a bitterish, slightly acrid taste. It is used for a dye, a medicine, a condiment, and a chemical test..

Sparteine :: Sparteine (n.) A narcotic alkaloid extracted from the tops of the common broom (Cytisus scoparius, formerly Spartium scoparium), as a colorless oily liquid of aniline-like odor and very bitter taste..

Cocaine :: Cocaine (n.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain..

Dolomite :: Dolomite (n.) A mineral consisting of the carbonate of lime and magnesia in varying proportions. It occurs in distinct crystals, and in extensive beds as a compact limestone, often crystalline granular, either white or clouded. It includes much of the common white marble. Also called bitter spar..

Lupinine :: Lupinine (n.) An alkaloid found in several species of lupine (Lupinus luteus, L. albus, etc.), and extracted as a bitter crystalline substance..

Astrofell :: Astrofell (n.) A bitter herb, probably the same as aster, or starwort..

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